Nodular hyperplasia of prostatic glands and the fibromuscular stroma. Glands exhibit focal cystic change with epithelial infoldings. The normal lobular pattern is preserved and cytologic features are unremarkable. There is focal dense collagenous stroma with interanastomosing slit-like spaces lined by spindle-shaped myofibroblasts, mimicking vascular channels but lacking endothelial lining, consistent with pseudoangiomatous stromal hyperplasia. Stroma shows focal infiltration by lymphocytes and plasma cells. No evidence of malignancy.
Prostatic enlargement.
Soft tissue fragments collectively measured 6.5x5x0.7 cm, totally embedded.
Prostatic biopsy: